Brilliant-cut diamond



FIG. 1 is a top plan view of a brilliant-cut diamond according to a first embodiment of my new design;

FIG. 2 is a side elevational view of a brilliant-cut diamond according to the first embodiment;

FIG. 3 is a bottom plan view of a brilliant-cut diamond according to the first embodiment;

FIG. 4 is a top plan view of a brilliant-cut diamond according to a second embodiment of my new design;

FIG. 5 is a side elevational view of a brilliant-cut diamond according to the second embodiment; and,

FIG. 6 is a bottom plan view of a brilliant-cut diamond according to the second embodiment. 

The ornamental design for a brilliant-cut diamond, as shown and described. 